1 files changed, 29 insertions, 0 deletions
diff --git a/doc/manual/generate-builtin-constants.nix b/doc/manual/generate-builtin-constants.nix
new file mode 100644
index 000000000..3fc1fae42
--- /dev/null
+++ b/doc/manual/generate-builtin-constants.nix
@@ -0,0 +1,29 @@
+let
+  inherit (builtins) concatStringsSep attrValues mapAttrs;
+  inherit (import ./utils.nix) optionalString squash;
+in
+
+builtinsInfo:
+let
+  showBuiltin = name: { doc, type, impure-only }:
+    let
+      type' = optionalString (type != null) " (${type})";
+
+      impureNotice = optionalString impure-only ''
+        Not available in [pure evaluation mode](@docroot@/command-ref/conf-file.md#conf-pure-eval).
+      '';
+    in
+    squash ''
+      <dt id="builtin-constants-${name}">
+        <a href="#builtin-constants-${name}"><code>${name}</code>${type'}</a>
+      </dt>
+      <dd>
+
+      ${doc}
+
+      ${impureNotice}
+
+      </dd>
+    '';
+in
+concatStringsSep "\n" (attrValues (mapAttrs showBuiltin builtinsInfo))